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Friday, July 16, 2010

22 mb Spectrum Study

The 22 mb (13 MHz) region is a very interesting section of the HF spectrum,
and behaves both as a short-haul band for daytime propagation, and as a
long-haul band for night-time signals.

Here in Melbourne, the band is very active in our mid-afternoons, with
longpath (darkness) propagation from Europe, Africa and the Middle East, and
shortpath (daylight) from Asia.

This is how the band looked between 0500 and 0530 on Friday July 16 2010,
from one of my favourite field monitoring sites in the Warrandyte State
Park, 20 km east of Melbourne central - the exact location was on South
Hill, adjacent to the Fiddler Gully historical gold mining area. I used the
little Eton E5, with a 3 m antenna in a bush, near old mine shafts.

13610 CHINA CNR1
13630 AUSTRALIA RA English
13650 IRAN VOIRI *0530 Spanish
13660 OMAN BBC Arabic
13670 CHINA PBS Xinjiang, Urumqi, Uyghur
13690 AUSTRALIA RA English
13700 CHINA CNR8 Kazakh
13710 MADAGASCAR VOA-Talata *0530 French
13740 IRAN VOIRI Dari
13750 IRAN VOIRI *0530 Bosnian
13765 VATICAN VR SMG Italian
13775 RUSSIA VOA-Vladivostok English
13780 IRAN VOIRI Arabic
13810 GERMANY R.Farda, Lapertheim, Farsi
13820 CYPRUS BBC Russian
13840 MADAGASCAR NHK-Talata *0530 French
13860 SRI LANKA R. Farda, Iranawela, Farsi

Regards from the gold diggings of Fiddlers Gully!


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